Struct Hash

pub struct Hash(/* private fields */);

The result of applying the SHA-256 hash function to data.

This function splits the input data into blocks and runs each block through a cycle of 64 iterations. The result of the function is a hash 256 bits or 32 bytes in length.

Examples

The example below generates the hash of the indicated data.

use exonum_crypto::Hash;

let data = [1, 2, 3];
let hash_from_data = exonum_crypto::hash(&data);
let default_hash = Hash::default();

Implementations

impl Hash

pub fn zero() -> Self

Creates a new instance filled with zeros.

impl Hash

pub fn new(bytes_array: [u8; 32]) -> Self

Creates a new instance from bytes array.

pub fn from_slice(bytes_slice: &[u8]) -> Option<Self>

Creates a new instance from bytes slice.

pub fn as_bytes(&self) -> [u8; 32]

Copies bytes from this instance.

pub fn to_hex(&self) -> String

Returns a hex representation of binary data. Lower case letters are used (e.g. f9b4ca).

Trait Implementations

impl AsRef<[u8]> for Hash

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Hash

fn clone(&self) -> Hash

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Hash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Hash

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Hash

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Hash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromHex for Hash

type Error = FromHexError

fn from_hex<T: AsRef<[u8]>>(v: T) -> Result<Self, Self::Error>

Creates an instance of type Self from the given hex string, or fails with a custom error type.

impl Hash for Hash

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Index<Range<usize>> for Hash

type Output = [u8]

The returned type after indexing.

fn index(&self, _index: Range<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeFrom<usize>> for Hash

type Output = [u8]

The returned type after indexing.

fn index(&self, _index: RangeFrom<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeFull> for Hash

type Output = [u8]

The returned type after indexing.

fn index(&self, _index: RangeFull) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeTo<usize>> for Hash

type Output = [u8]

The returned type after indexing.

fn index(&self, _index: RangeTo<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Ord for Hash

fn cmp(&self, other: &Hash) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Hash

fn eq(&self, other: &Hash) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Hash

fn partial_cmp(&self, other: &Hash) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl ProtobufConvert for Hash

type ProtoStruct = Hash

Type generated from the Protobuf definition.

fn to_pb(&self) -> Hash

Performs conversion to the type generated from Protobuf.

fn from_pb(pb: Hash) -> Result<Self, Error>

Performs conversion from the type generated from Protobuf.

impl Serialize for Hash

fn serialize<S>(&self, ser: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Hash

impl Eq for Hash

impl StructuralPartialEq for Hash